someoneSomeone told me that he stopped davening in a certain shul because he saw members driving to shul on shabbos (the shul doesntdoesn't close their parking lot on shabbos.)
isIs there a makkor in halacha not to daven in a shul that some members are mechalel shabbos befarhesya (desecrating the Sabbath in public) (even though they might have the geder of being a "tinok shenishba" (a child that was lost among the nations ie. brought up in a non-religious house))?